package com.xckj.start;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Component;

/**
 * @description 获取bean，组件注入顺序靠后一点
 */
@Component
@Order(5)
public class SpringUtil implements ApplicationContextAware {

    private static Logger logger = LoggerFactory.getLogger(SpringUtil.class);
    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringUtil.applicationContext == null) {
            SpringUtil.applicationContext = applicationContext;
        }
        logger.info("ApplicationContext配置成功,applicationContext对象："+SpringUtil.applicationContext);
    }

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    public static Object getBean(String name) {
        return getApplicationContext().getBean(name);
    }

    public static <T> T getBean(Class<T> clazz) {
        return getApplicationContext().getBean(clazz);
    }

    public static <T> T getBean(String name,Class<T> clazz) {
        return getApplicationContext().getBean(name,clazz);
    }
}

